1<!-- 2http://www.w3.org/TR/xmldsig2ed-tests/#XMLID 3 4Check that implementations of [XML-C14N1.1] handle xml:id attributes 5as defined in [XML-C14N1.1] 6--> 7<XPath xmlns:ietf="http://www.ietf.org" > 8(//. | //@* | //namespace::*) 9[ancestor-or-self::ietf:e1] 10</XPath> 11